/*

 *

 * ====================================================================

 *

 * Copyright 2004 The Apache Software Foundation 

 *

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 *

 *     http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 *

 */

 package org.apache.commons.contract.store;

 import org.apache.commons.contract.Context;

 import org.apache.commons.contract.Store;

 import org.apache.commons.contract.StoreException;

 import org.apache.commons.contract.constraints.CastException;

 import org.apache.commons.contract.constraints.StringConstraints;

 import org.apache.commons.i18n.bundles.ErrorBundle;

 public class Environment implements Store {

     public final static String ID = "environment";

     public void put(String key, Object value, Context context) throws StoreException {

         try {

             System.setProperty(key, (String)StringConstraints.UNCONSTRAINED.cast(value, context));

         } catch (CastException e) {

             throw new StoreException(new ErrorBundle("storesStringsOnly"), e);

         }

     }

     public Object get(String key, Context context) throws StoreException {

         return System.getProperty(key);

     }

     public void dispose(String key, Context context) throws StoreException {

         throw new StoreException(new ErrorBundle("disposeNotAvailable"));

     }

     public String getId() {

         return ID;

     }

 }